1. (noun)one-third, third, tierce one of threeequalparts of a divisible whole "it contains approximately a third of the minimum daily requirement"
2. (noun)third base, third the fieldingposition of the player on a baseballteam who is stationed near the third of the bases in the infield (counting counterclockwise from home plate) "he is playing third"
3. (noun)third following the secondposition in an ordering or series "a distant third"; "he answered the first question willingly, the second reluctantly, and the third with resentment"
4. (noun)third the musicalinterval between one note and another three notes away from it "a simple harmony written in major thirds"
Definition of 'third' 
